20003512662647 has 8 divisors (see below), whose sum is σ = 20010035357520. Its totient is φ = 19996990885440.

The previous prime is 20003512662641. The next prime is 20003512662691. The reversal of 20003512662647 is 74626621530002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003512662647 - 2⁶ = 20003512662583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003512662598 and 20003512662607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003512662641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44805173 + ... + 45249425.

It is an arithmetic number, because the mean of its divisors is an integer number (2501254419690).

Almost surely, 2^{20003512662647} is an apocalyptic number.

20003512662647 is a deficient number, since it is larger than the sum of its proper divisors (6522694873).

20003512662647 is a wasteful number, since it uses less digits than its factorization.

20003512662647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458833.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 20003512662647 in words is "twenty trillion, three billion, five hundred twelve million, six hundred sixty-two thousand, six hundred forty-seven".